期刊
ENVIRONMENTAL MONITORING AND ASSESSMENT
卷 170, 期 1-4, 页码 59-63出版社
SPRINGER
DOI: 10.1007/s10661-009-1214-0
关键词
DP-AdSV; Simeton; Grains; Formulations
A sensitive adsorptive stripping voltammetric method for the determination of simeton with universal buffer solution has been described. The method was based on the adsorption accumulation of simeton at a hanging mercury drop electrode. The overall reduction process is under controlled diffusion. The adsorptive peak was observed at -0.8 V vs SCE in acidic solution 2 < pH < 6. The peak response was characterized with respect to pH, accumulation potential, time, and scan rate. The calibration plot was found to be linear from 1.13 x 10 (-aEuro parts per thousand 5) to 3.5 x 10 (-aEuro parts per thousand 8) M with a limit of detection of 2.0 x 10 (-aEuro parts per thousand 8) M. Finally, the method has been applied for the determination of simeton in its formulations and vegetable samples.
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